NEEDLE AND SYRINGE SYSTEM WITH ULTRA-LOW LOSSES AND AUTOMATIC AND PASSIVE MOVEMENT OF THE NEEDLE TO A SAFE POSITION DURING INJECTION Russian patent published in 2022 - IPC A61M5/178 

FIELD: medical technology.

SUBSTANCE: invention relates to medical technology, namely to the system (10), which provides protection against loss of medicinal substance and needlestick injury. A syringe (12) is proposed, which contains a cylinder (40) and a piston (50). A tubular separator (54) is located in the cylinder (40). The needle head (14) is proposed, which contains a coupling (34) and a needle (16). A sliding safety cover (22) is located between the needle (16) and the coupling (34). The sliding safety cover (22) contains a protective tube (30). In the first position, the protective tube (30) does not extend beyond the needle (16). In the second position, the protective tube (30) extends beyond the end (18) of the needle (16). When the piston moves forward, its head (52) drives the tubular separator (54). The tubular separator presses the sliding safety cover (22). The sliding safety cover (22) moves from the first position to the second position.

EFFECT: expansion of the range of syringe design solutions.

11 cl, 6 dwg